Inventor · disambiguated record
Ryuji Yamada
Also filed as: YAMADA RYUJI
103 granted patents·15 pending applications·411 citations·filing 1980–2025
99Inventor score
Top patents by PatentIndex Score
118 records- 0194US9705313B2Three-level inverter employing a bidirectional switch, and modular structure thereforFUJI ELECTRIC CO LTD·Filed 2015·Granted Jul 11, 2017·12 cites·14 claims
- 0291US6778759B1Information recording medium having logical structured recording areaBROTHER IND LTD·Filed 2000·Granted Aug 17, 2004·36 cites·20 claims
- 0390US6879769B1Device for processing recorded information and storage medium storing program for sameBROTHER IND LTD·Filed 2000·Granted Apr 12, 2005·34 cites·28 claims
- 0489US8467212B2Rectifier circuitMINO KAZUAKI·Filed 2010·Granted Jun 18, 2013·12 cites·21 claims
- 0589US7626723B2Color-conversion-table creating methodBROTHER IND LTD·Filed 2005·Granted Dec 1, 2009·13 cites·8 claims
- 0688US10312800B2AC-DC converterFUJI ELECTRIC CO LTD·Filed 2018·Granted Jun 4, 2019·5 cites·20 claims
- 0788US9374016B2AC-DC converterFUJI ELECTRIC CO LTD·Filed 2015·Granted Jun 21, 2016·6 cites·9 claims
- 0886US9899835B2Uninterruptible power supply systemFUJI ELECTRIC CO LTD·Filed 2015·Granted Feb 20, 2018·6 cites·12 claims
- 0982US11233921B2Image processing apparatus that specifies edge pixel in target image using single-component image dataBROTHER IND LTD·Filed 2019·Granted Jan 25, 2022·2 cites·20 claims
- 1082US10693365B2Power conversion circuit with a compensation circuitFUJI ELECTRIC CO LTD·Filed 2019·Granted Jun 23, 2020·3 cites·20 claims
- 1182US10123443B2Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2015·Granted Nov 6, 2018·4 cites·11 claims
- 1282US10090701B2Solar power generation systemFUJI ELECTRIC CO LTD·Filed 2015·Granted Oct 2, 2018·4 cites·7 claims
- 1381US11223290B2Power conversion device, control method, and computer-readable mediumFUJI ELECTRIC CO LTD·Filed 2020·Granted Jan 11, 2022·1 cites·9 claims
- 1481US10931206B2Power supply for output of various specificationsFUJI ELECTRIC CO LTD·Filed 2017·Granted Feb 23, 2021·3 cites·14 claims
- 1581US8432710B2Power conversion apparatusYAMADA RYUJI·Filed 2010·Granted Apr 30, 2013·6 cites·17 claims
- 1680US2025047198A1Integrated circuit and power supply circuitFUJI ELECTRIC CO LTD·Filed 2024·Application pending·0 cites
- 1779US10374513B2AC-DC converterFUJI ELECTRIC CO LTD·Filed 2018·Granted Aug 6, 2019·3 cites·12 claims
- 1879US8368961B2Image processing device and method for creating binary image data using a single set of dither matricesBROTHER IND LTD·Filed 2010·Granted Feb 5, 2013·4 cites·7 claims
- 1978US9742272B2AC-DC converterFUJI ELECTRIC CO LTD·Filed 2016·Granted Aug 22, 2017·3 cites·7 claims
- 2078US9673625B2Uninterruptible power supply apparatusFUJI ELECTRIC CO LTD·Filed 2015·Granted Jun 6, 2017·3 cites·19 claims
- 2176US8780424B2Image processing deviceYAMADA RYUJI·Filed 2011·Granted Jul 15, 2014·3 cites·8 claims
- 2275US4741577ADouble ranging drum cutter having load controllerZAIDAN HOJIN SEKITAN GIJUTSU K·Filed 1986·Granted May 3, 1988·43 cites·1 claims
- 2373US4715657ADouble ranging drum cutter having bedrock sensor based on video image processing systemZAIDAN HOJIN SEKITAN GIJUTSU K·Filed 1986·Granted Dec 29, 1987·40 cites·1 claims
- 2472US9608524B2DC power supply equipmentFUJI ELECTRIC CO LTD·Filed 2015·Granted Mar 28, 2017·2 cites·21 claims
- 2572US9432571B2Storage medium and control deviceYAMADA RYUJI·Filed 2014·Granted Aug 30, 2016·2 cites·24 claims
- 2672US9002104B2Image processing apparatusYAMADA RYUJI·Filed 2013·Granted Apr 7, 2015·2 cites·19 claims
- 2772US2025379501A1Oscillation suppressing circuitFUJI ELECTRIC CO LTD·Filed 2025·Application pending·0 cites
- 2871US12166413B2Integrated circuit and power supply circuitFUJI ELECTRIC CO LTD·Filed 2022·Granted Dec 10, 2024·0 cites·11 claims
- 2971US4822105ADouble ended ranging drum shearer and method of controlling working height in mining face in use of the sameMITSUI MIIKE MACHINERY CO LTD·Filed 1987·Granted Apr 18, 1989·42 cites·5 claims
- 3070US7912393B2Image-forming device with a density measuring unitBROTHER IND LTD·Filed 2008·Granted Mar 22, 2011·3 cites·12 claims
- 3168US10128369B2Silicon carbide semiconductor device, method of manufacturing silicon carbide semiconductor device, and method of controlling silicon carbide semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2017·Granted Nov 13, 2018·1 cites·11 claims
- 3268US8902621B2Power supply device for use with selectable AC power supply voltageYAMADA RYUJI·Filed 2012·Granted Dec 2, 2014·3 cites·6 claims
- 3368US8061833B2Inkjet printer, printing method and ink dryerONOZAWA YOSHIKI·Filed 2009·Granted Nov 22, 2011·3 cites·4 claims
- 3468US2025368055A1Electrical power system, power supply apparatus, power converter, and controllerFUJI ELECTRIC CO LTD·Filed 2024·Application pending·0 cites
- 3567US7701624B2Image-forming device for correcting printing characteristicsBROTHER IND LTD·Filed 2004·Granted Apr 20, 2010·7 cites·19 claims
- 3666US11876441B2Switching control circuit and resonant converterFUJI ELECTRIC CO LTD·Filed 2022·Granted Jan 16, 2024·0 cites·11 claims
- 3765US9979286B2Power converting deviceFUJI ELECTRIC CO LTD·Filed 2017·Granted May 22, 2018·1 cites·18 claims
- 3865US9231479B2Power supply deviceFUJI ELECTRIC CO LTD·Filed 2013·Granted Jan 5, 2016·3 cites·9 claims
- 3964US8994981B2Calibration systemYAMADA RYUJI·Filed 2008·Granted Mar 31, 2015·2 cites·9 claims
- 4064US8749842B2Image processorYAMADA RYUJI·Filed 2011·Granted Jun 10, 2014·1 cites·8 claims
- 4164US5836645ALounger-type massage machineMATSUSHITA ELECTRIC WORKS LTD·Filed 1996·Granted Nov 17, 1998·37 cites·14 claims
- 4263US8059312B2Calibration data creating deviceYAMADA RYUJI·Filed 2008·Granted Nov 15, 2011·1 cites·23 claims
- 4362US9705362B2Power converterFUJI ELECTRIC CO LTD·Filed 2014·Granted Jul 11, 2017·1 cites·22 claims
- 4462US7729631B2Image forming apparatus capable of preventing waste of developerBROTHER IND LTD·Filed 2008·Granted Jun 1, 2010·2 cites·12 claims
- 4561US8823983B2Terminal device used to transmit image data for rapid printingYAMADA RYUJI·Filed 2012·Granted Sep 2, 2014·1 cites·10 claims
- 4660US12489363B2Switching control circuit, control circuit, and power supply circuitFUJI ELECTRIC CO LTD·Filed 2023·Granted Dec 2, 2025·0 cites·7 claims
- 4760US12374989B2Switching control circuit and power supply circuitFUJI ELECTRIC CO LTD·Filed 2023·Granted Jul 29, 2025·0 cites·13 claims
- 4860US10565465B2Image processing apparatus that identifies character pixel in target image using first and second candidate character pixelsBROTHER IND LTD·Filed 2019·Granted Feb 18, 2020·0 cites·6 claims
- 4960US9692310B2Power converterFUJI ELECTRIC CO LTD·Filed 2014·Granted Jun 27, 2017·1 cites·17 claims
- 5060US9071166B2Power converter with surge voltage suppressionYAMADA RYUJI·Filed 2011·Granted Jun 30, 2015·1 cites·9 claims
Showing the top 50 of 118 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →